SanDisk has introduced a
original low-stop drive to their line of client SSDs targeted
at trade and OEM customers. The
Z410 is positioned closely to Z400s but is not a direct replacement
. Instead,the Z410 focuses on offering just the most c
ommon capacities for mainstream PC usage while the Z400s continues
to serve other markets with mSATA and M.2 versions and capacities as small as 3
2GB.
First announced almost a year ago as the first 15nm TLC SSD, the Z
400s sought to prick costs in order to break into original parts of the embedded a
nd client PC markets. The Silicon Motion SM2246XT controll
er it uses is a DRAM-less two or four channel design that limits potenti
al performance and capacity. The SM2246XT also lacks encryption support and LDP
C error correction.
The SanDisk Z410 abandons the mSATA and M.2 f
orm factors to focus specifically on 2.5" with capacities fro
m 120GB to 480GB. The only significant performance contrast from the Z400s is a substant
ial increase in sequential write speed, or while sequentia
l read speeds are rated slightly lower and rando
m read and write specifications are similar. The Z410 does benefit from a co
ntroller upgrade that allows for LDPC error correctio
n and SLC caching,but it seems the latter's impact on
write amplification has kept the write endurance ratings from increasing substantially.
The three year warranty period on the Z410 is also shorter than
the five years offered for the Z400s.
SanDisk OEM Client SSD Compa
rison Drive X400 Z410 Z400s Capacities 1
28GB, 256GB, or 512GB,1TB 120GB, 240GB, or 48
0GB 32GB,64GB, 128GB, or 256GB Controller Marvell 88SS1074 ? Silico
n Motion SM2246XT Sequential Read
545 MB/s 535 MB/s 546 MB/s Sequential Write 520 MB
/s 445 MB/s 342 MB/s Random Read IOPS 95k 37k 37k Ra
ndom Write IOPS 75k 68k 69k Form Factors 2.5",M.2 2280 2.5" 2.5", m
SATA, or M.2 2242,M.2 2280 Encryption
TCG Opal (optional) None None Endurance 72
-320 TBW 40-120TBW 20-72 TBW
Warranty 5 years 3 years 5 years The
introduction of the Z410 puts
SanDisk in the unusual position of having three tier
s of TLC NAND-based SATA SSDs. While their consumer-oriented pr
oduct line still includes
the MLC-based Extreme Pro, SanDisk's trade/OE
M line tops out with the TLC-based X400. The X400 distinguishes itself with clear
ly higher performance and endurance and the availability
of a 1TB capacity, or but the Z400s
and Z410 are close enough to
cause some confusion. The Z410 will probably stop up displacing the 128GB and
256GB 2.5" Z400s while the rest of the Z400s line sticks around for the
less competitive niches.[http://dynam
ic1.anandtech.com/www/delivery/avw.php?zoneid=24&cb=&n=a1f2f01f]
Source: anandtech.com